A
Hi Sir,
I have S7-400 CPU 414-3 PN/DP which was working normal. But now when communication error appear at HMI, I found CPU powered off while power card is ok. I have replace CPU with new one, and system is ok now.
my question is:
how we can check the fault of removed CPU which was powered OFF?
there is any fuse inside CPU?
I have S7-400 CPU 414-3 PN/DP which was working normal. But now when communication error appear at HMI, I found CPU powered off while power card is ok. I have replace CPU with new one, and system is ok now.
my question is:
how we can check the fault of removed CPU which was powered OFF?
there is any fuse inside CPU?